Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5301539 | Method for improving enhanced recovery of oil using surfactant-stabilized foams | Laurier L. Schramm, Conrad Ayasse, Karin Mannhardt | 1994-04-12 |
| 5074358 | Surfactant-stabilized foams for enhanced oil recovery | William A. Rendall, Conrad Ayasse | 1991-12-24 |
| 5060727 | Method for improving enhanced recovery of oil using surfactant-stabilized foams | Laurier L. Schramm, Conrad Ayasse, Karin Mannhardt | 1991-10-29 |